Sentinel-1 RTC 0-filled incomplete scenes

[MarkusZehner]

While sampling globally we came across some scenes that have '0' infilled parts:

{'S1A_IW_GRDH_1SDV_20220627T085101_20220627T085126_043846_053C07_rtc',
'S1A_IW_GRDH_1SDV_20220702T085859_20220702T085924_043919_053E3D_rtc'}